Sylvania



(No Model.) 3 SheetsSheet 1.

W. E. GOOD & G. 0. LINDROTH. LINK MOTION FOR COMPOUND ENGINES.

Patented Feb. 17,1891;

l I I I Win eases:

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(No Model.) 3 Sheets-Sheet 2 W. E. GOOD & 0. O. LINDROTH. LINK MOTIONFOR COMPOUND ENGINES. 444.

YIIIIII/l) Patented Feb. 17,1891

(No Model.) 3 Sheets-Sheet 3. W. E. GOOD 8: O. 0. LINDBOTH.

LINK MOTION FOR COMPOUND ENGINES.

Patented Feb. 17,1891.

lhvTTnn STaTns PATENT Orrrcn.

\VILLIAM E. GOOD AND CARL O. SYLVANIA, ASSIGNORS TO THE COMPANY, OF SAMEPLACE.

LINDROTII, OF PHILADELPHIA, PENN SOUTI-IWARK FOUNDRY AND MACHINELINK-MOTION FOR COMPOUND ENGINES.-

SPECIFICATION forming part of Letters Patent No. 446,444, dated February17, 1891. Application filed November 20, 1890. Serial No- 371,984 (Nomodel.)

To all whom it may concern.- Be it known that we, WILLIAM E. GOOD andCARL OSKAR LINDROTH, both of the city and county of Philadelphia, Stateof Pennsyl- Vania, have invented a certain new and usef ul ImprovedLink-Motion for Compound Engines, of which the following is a true andexact description, reference being had to the accompanying drawings,which form a part of this specification.

Our invent-ion relates to an improvement in valve-actuatin g links ofthe kind generally known as the Pius Fink link, and by which they areadapted for use with compound ongines, our object beiiig to adapt thelink so that it will actuate the admission and exhaust valves of boththe high and low pressure cylinder.

The nature of our improvement will be best understood as described inconnection with the drawings, in which it is illustrated in connectionwith a compound engine of the Porter Allen type, and in which- Figures 1and 1 make up together a plan 2-5 view of the engine; Figs. 2 and 2, aside elevation thereof; Fig. 3, an enlarged elevation of the link; Fig.4, a section through the link and attachments on the line 1 2 of Fig. 3;and

Figs. 5 and 6 are plan views illustrating two modifications in mechanismfor adjusting in the link the rod which actuates the admissionvalves ofthe low-pressure cylinder.

A is the bed-plate of the engine; B, the high-pressure cylinder; C, thelow-pressure 3 5 cylinder.

D is the main shaft of the engine; E, an eccentric situated thereon; Fand F, the well known Pius Fink link, combining the eccentric-strap Fand the slotted link F. f is the slot in the said link, in which the rodwhich actuates the admission-valves of the highpressure cylinder issecured.

II is the usual guide-link, pivoted to the bedplate at one end and inthe slot f at the other end.

111 addition to the usual slot f we provide in or in connection with theslotted link F F an independent supplemental slot g, in which is securedthe end. of the rod T, which act-uates the admission-valves of thelow-pressure 5o cylinder. As shown in the drawings, and as preferablyconstructed, the supplemental slot 9 is form ed in a plate G, which isbolted to the link F F, as shown, so that the slotg shallliesubstantially in line with the slot f. I is a pin secured to the link FF, as shown, and to which pin is secured the rod P, which actuates theexhaust-valves of both cylinders. The mechanism shown in the drawings,by which the motion of the rods J, T, and P is communicated to thedilferent valves which they actuate, is that which I have found welladapted for use in connection with the style of engine illustrated, butmay of course be modified in many respects. As shown, the rod J issecured to an arm k of a rock-shaft K, upon which shaft are also securedarms 7e and 7a, which arms actuate, as shown, the connecting-rods L andL ,which, acting through the slides M and M, communicate motion to theinlet-valves N and N of the high-pressure cylinder The desired variationin the cut-off is effected in the usual way by means of a governor O,which changes the position of the pivoted end of rod Referring next tothe rod T, it will be necessary that it connects with an arm tof arockshaft T, upon which rock-shaft are also secured the arms '15 and twhich actuate, respectively, the connecting-rods U and U, the other endsof which connect with the slide it and a, which in turn, by means ofrods extending into the valve chest, actuate the inlet-valves V and V ofthe low-pressure cylinder. The rod P is arranged, as shown, to actuatethe exhaust-valves of both cylinders. It is connected to the pin I onthe link F F and to the arm Q of rock-shaft Q, from which shaft alsoextends another arm Q From the said arm Q a connecting-arm qcommunicates motion to the exhaust-valves R and R of the higlnpressurecylinder. Connecting with a second pivot, as shown, of the arm Q, aconnecting-rod S communicates motion to a rocking arm S, to which arm isalso secured the connect-ing rod S which connects with and actuates theoutlet-valves s and s of the low-pressure cylinder.

Ve have found that it is not necessary or advisable to change the strokeof the admission-valves of the low-pressure cylinder during the ordinarynormal running of the en- 5 gine. It is only necessary, therefore, tomake an adjust-able connection of the end 'Fof rod T in the slot g. Thismay be done in any convenient way, as by a clamping-nut, but moreconveniently by constructions such as are shown in Figs. 5 and 6.

In Fig. 5 the adjustment of the end of rod T in the slot 9 is effectedby a lever X, connecting with red T at one end by means of a rod X, andhaving a catch X at its handle end, by which the lever X can be adjustedin any desired position with respect to a segment X supported on astandard X.

In Fig. (5 the end of rod T is made adjust able by means of a screw XV,supported at the upper part of the link F, and by turning which the endof rod T is elevated or depressed in the slot g. 7

Having now described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. In combination with acompound engine, a link, as F F, having a slotf, and a supplemental slot g, as described,a rod J ,automaticallyadjustable in slot f and arranged to actuate the admission-valves of thehighpressure cylinder, a rod T, adj ustable in slot g and arranged toactuate the admissionvalves of the low-pressure cylinder, and a rod orrods P, also connected with link F F and arranged to actuate theexhaust-valves of the cylinders.

2. In combination with a compound engine, a link, as F F, having aslotf, and a supplemental slot g, as described, a rod J, automaticallyadjustable in slot f and arranged to actuate the admission-valves of thehighpressure cylinder, a rod T, adjustable in slot 9 and arranged toactuate the admissionvalves of the low-pressure cylinder, means foradjusting rod T in slot 9, as described, and a rod or rods P, alsoconnected with link F F and arranged to actuate the exhaustvalves of thecylinders.

\VILLIAM E. GOOD. C. O. LINDROTII.

Witnesses:

LEWIS R. DICK, FANNIE T. CHAMBERS.

